Air duct structure and cleaning device

Abstract

The present application relates to the technical field of cleaning device, and particularly relates to a wind channel structure and a cleaning device. The wind channel structure comprises a wind channel shell and a separation part. The wind channel shell is provided with a wind channel cavity, an air inlet, an air outlet and a connecting port. The connecting port is adapted to be connected with a dust separator. The separation part is connected in the wind channel cavity, and divides the wind channel cavity into an air inlet cavity and an air outlet cavity. The air inlet cavity is adapted to be communicated with a dust inlet of the dust separator and the air inlet. The air outlet cavity is adapted to be communicated with an air outlet of the dust separator and the air outlet. The wind channel structure provided by the present application simplifies the number of parts, reduces the cost of production and manufacturing, improves the production and assembly efficiency, and has a compact and simple structure, small wind channel resistance and high reliability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning devices, in particular to a wind channel structure and a cleaning device. BACKGROUND

[0002] In a cleaning device such as a dust collector or a mite remover, a suction head unit, a separator unit, a fan unit and other structures are generally included, and the functional units are generally connected through independent wind channel structures such as an air inlet channel and an air outlet channel, and the connection interfaces between the units need to be sealed through sealing elements. The wind channel structure is complex and has a large number of parts, resulting in high mold opening cost and low production and assembly efficiency, and the interfaces between the wind channel structure and the functional units are numerous, resulting in large wind channel resistance. SUMMARY

[0003] Therefore, the present application aims to overcome the defects of the prior art, i.e., the large number of parts and the complexity of the wind channel structure, and to provide a wind channel structure and a cleaning device.

[0004] To solve the above problems, the present application provides a wind channel structure, which comprises a wind channel shell and a partition, the wind channel shell is provided with a wind channel cavity, an air inlet, an air outlet and a connection port which are in communication with the wind channel cavity, and the connection port is adapted to be connected with a dust and dirt separator; the partition is connected in the wind channel cavity, and the wind channel cavity is divided into an air inlet cavity and an air outlet cavity, the air inlet cavity is in communication with a dust and gas inlet of the dust and dirt separator and the air inlet, and the air outlet cavity is in communication with a gas flow outlet of the dust and dirt separator and the air outlet.

[0005] The wind channel structure provided by the present application is integrally formed in the wind channel cavity.

[0006] The wind channel structure provided by the present application is integrally formed in the wind channel cavity.

[0007] The wind channel structure provided by the present application is integrally formed in the wind channel cavity.

[0008] The air duct structure provided by the application, the mounting portion comprises a first mounting sub-portion and a second mounting sub-portion, the first mounting sub-portion is arranged on the partition portion, and the second mounting sub-portion is arranged on the air duct shell; the sealing member comprises a first sealing portion and a second sealing portion, the first sealing portion is connected with the first mounting sub-portion, and the first sealing portion is a strip-shaped sealing portion extending along the length direction of the partition portion; the second sealing portion is connected with the second mounting sub-portion, and the second sealing portion is a ring-shaped sealing portion matched with the shape of the connecting port, and the two ends of the strip-shaped sealing portion are connected with the inner ring of the ring-shaped sealing portion, respectively.

[0009] The air duct structure provided by the application, the first mounting sub-portion is a first mounting groove arranged on the end face of the partition portion, the second mounting sub-portion is a second mounting groove arranged on the end portion of the air duct shell, the second mounting groove is a ring-shaped mounting groove matched with the shape of the air duct shell, the two ends of the first mounting groove are connected with the groove walls of the inner ring of the ring-shaped mounting groove, respectively, and the first sealing portion and the second sealing portion are integrally formed.

[0010] The air duct structure provided by the application, the connecting port is further provided with a stepped groove, the stepped groove is arranged on the outer periphery of the mounting portion, and the stepped groove is used for guiding and positioning the connection of the dust and dirt separator.

[0011] The air duct structure provided by the application, the air duct shell comprises:

[0012] The shell body is provided with the connecting port at one end, the partition portion is connected in the shell body, and the inner cavity of the shell body is divided into a first inner cavity and a second inner cavity by the partition portion;

[0013] The air inlet shell extends outward from the other end of the shell body and is integrally formed with the shell body, and the air inlet is arranged on the end of the air inlet shell away from the shell body; the inner cavity of the air inlet shell is connected with the first inner cavity and forms an air inlet cavity with the first inner cavity;

[0014] The air outlet shell extends outward from the side portion of the shell body and is integrally formed with the shell body, and the air outlet is arranged on the end of the air outlet shell away from the shell body; the inner cavity of the air outlet shell is connected with the second inner cavity and forms an air outlet cavity with the second inner cavity.

[0015] The air duct structure provided by the application, the area of the flow section of the second flow passage is greater than the area of the flow section of the air outlet shell, and an arc-shaped transition surface is arranged between the second flow passage and the air outlet shell.

[0016] The application further provides a cleaning device comprising the air duct structure, the dust and dirt separator and the fan unit, the dust and dirt separator is connected with the connecting port, and the fan unit is connected with the air outlet.

[0017] The cleaning device provided by the application further comprises a shell, a suction port is arranged on the shell, and the air duct structure is connected in the shell, and the air inlet is connected at the suction port.

[0018] The application has the following advantages:

[0019] 1. The air duct structure provided by the application comprises an air duct shell and a partition, the air duct shell is provided with an air duct cavity, an air inlet, an air outlet and a connecting port which are in communication with the air duct cavity, and the connecting port is adapted to be connected with a dust separator; the partition is connected in the air duct cavity, so that the air duct cavity is divided into an air inlet cavity and an air outlet cavity, the air inlet cavity is adapted to be in communication with a dust gas inlet of the dust separator and the air inlet, and the air outlet cavity is adapted to be in communication with a gas flow outlet of the dust separator and the air outlet.

[0020] The air inlet cavity and the air outlet cavity are integrated on the air duct shell through the partition, the air inlet cavity is in communication with the dust gas inlet of the dust separator through the air inlet, and the air outlet cavity is in communication with the gas flow outlet of the dust separator through the air outlet. The connection between the suction head, the dust separator and the fan unit and other functional units is realized through an integrated air duct structure, the number of parts is reduced, the production and manufacturing cost is reduced, the production and assembly efficiency is improved, and the structure is compact and simple, the air duct resistance is small, and the reliability is high.

[0021] 2. The air duct structure provided by the application, the partition is integrally formed in the air duct cavity. The structure is simple, the sealing performance between the air inlet cavity and the air outlet cavity is good, and the air inlet cavity and the air outlet cavity can be formed at one time through a group of molds, the mold opening cost is low, and the production efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0023] Fig. 1 The schematic view of the air duct structure provided by the application is shown;

[0024] Fig. 2 The sectional view of the air duct structure provided by the application is shown;

[0025] Fig. 3 The partial schematic view of the cleaning device provided by the application is shown;

[0026] Fig. 4A partial assembly drawing of the cleaning device provided by the present application is shown.

[0027] Explanation of reference numerals:

[0028] 1, air duct structure; 11, air duct shell; 111, air inlet; 112, air outlet; 113, connecting port; 1131, first flow-through port; 1132, second flow-through port; 12, partition; 13, air inlet cavity; 14, air outlet cavity; 15, mounting portion; 151, first mounting portion; 152, second mounting portion; 16, stepped groove; 17, shell body; 18, air inlet shell; 19, air outlet shell; 191, arc-shaped transition surface; 2, sealing member; 21, first sealing portion; 22, second sealing portion; 3, dust separator; 4, fan unit; 5, housing; 51, suction port. DETAILED DESCRIPTION

[0029] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0032] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0033] For example, Figs. 1 to 4As shown, the embodiment provides a wind channel structure 1, which comprises a wind channel shell 11 and a partition 12. The wind channel shell 11 is provided with a wind channel cavity, an air inlet 111, an air outlet 112 and a connecting port 113 which are in communication with the wind channel cavity, and the connecting port 113 is adapted to be connected with a dust separator 3. The partition 12 is connected in the wind channel cavity, and divides the wind channel cavity into an air inlet cavity 13 and an air outlet cavity 14. The air inlet cavity 13 is in communication with a dust gas inlet of the dust separator 3 and the air inlet 111, and the air outlet cavity 14 is in communication with a gas flow outlet of the dust separator 3 and the air outlet 112.

[0034] The air inlet cavity 13 and the air outlet cavity 14 are integrated on the wind channel shell 11 through the partition 12. The air inlet cavity 13 is in communication with the dust gas inlet of the dust separator 3 through the air inlet 111, and the air outlet cavity 14 is in communication with the gas flow outlet of the dust separator 3 through the air outlet 112. The connection between the suction head, the dust separator 3 and the fan unit 4 is realized through an integrated wind channel structure 1, which simplifies the number of parts, reduces the cost of production and manufacturing, improves the production and assembly efficiency, achieves the purpose of reducing cost and increasing efficiency, and improves the market competitiveness of the product. The structure is compact and simple, the wind channel resistance is small, and the reliability is high.

[0035] In the embodiment, the partition 12 is integrally formed in the wind channel cavity. The structure is simple, the sealing performance between the air inlet cavity 13 and the air outlet cavity 14 is good, and the partition 12 can be integrally formed through a set of molds at one time, which has low mold opening cost and high production efficiency. Preferably, the partition 12 is a partition plate integrally formed in the wind channel cavity.

[0036] As a convertible embodiment, the partition 12 can also be welded in the wind channel cavity. Alternatively, a connecting groove is integrally formed in the wind channel cavity, and the partition 12 is sealingly connected to the connecting groove.

[0037] Further, the partition 12 extends to the connecting port 113 and divides the connecting port 113 into a first flow port 1131 and a second flow port 1132. The air inlet cavity 13 is in communication with the dust gas inlet through the first flow port 1131, and the air outlet cavity 14 is in communication with the gas flow outlet through the second flow port 1132. The first flow port 1131 and the second flow port 1132 can be in the same plane, which is convenient for connecting with the dust separator 3, and more easily seals and separates the air inlet cavity 13 and the air outlet cavity 14 at the connecting port 113, avoiding the mixing of dust gas and clean gas at the connecting port 113.

[0038] Further, the connecting port 113 is provided with a mounting portion 15, which is adapted to be connected with a sealing member 2, the first flow-through port 1131 is adapted to communicate with the dust gas inlet through the sealing member 2, and the second flow-through port 1132 is adapted to be in sealed communication with the air outlet through the sealing member 2.

[0039] The sealing member 2 is arranged to realize the sealing between the air inlet cavity 13 and the air outlet cavity 14, and realize the sealing between the air duct structure 1 and the dust and dirt separator 3. After the connecting port 113 is connected with the dust and dirt separator 3, it is ensured that the air in the air inlet cavity 13 and the air outlet cavity 14 will not be mixed.

[0040] Further, the mounting portion 15 comprises a first mounting sub-portion 151, which is arranged on the partition portion 12, and the sealing member 2 comprises a first sealing portion 21, which is connected with the first mounting sub-portion 151, and the first sealing portion 21 is a strip-shaped sealing portion extending along the length direction of the partition portion 12. The first mounting sub-portion 151 is used to fix and seal the first sealing portion 21, so as to prevent the air flow from being mixed at the partition portion 12.

[0041] Further, the mounting portion 15 further comprises a second mounting sub-portion 152, which is arranged on the air duct shell 11, and the sealing member 2 further comprises a second sealing portion 22, which is connected with the second mounting sub-portion 152, and the second sealing portion 22 is a ring-shaped sealing portion matching the shape of the connecting port 113, and the two ends of the strip-shaped sealing portion are respectively connected with the inner ring of the ring-shaped sealing portion. The second mounting sub-portion 152 is used to fix and seal the second sealing portion 22, so as to prevent the air flow from overflowing between the air duct shell 11 and the dust and dirt separator 3. The two ends of the strip-shaped sealing portion are respectively connected with the inner ring of the ring-shaped sealing portion, so as to prevent the air flow from overflowing between the strip-shaped sealing portion and the ring-shaped sealing portion.

[0042] Further, the first mounting part 151 is a first mounting groove arranged on the end face of the partition part 12, which can not only limit and fix the first sealing part 21, but also obtain better sealing effect; the second mounting part 152 is a second mounting groove arranged on the end of the air duct shell 11, which is an annular mounting groove matched with the shape of the air duct shell 11, and can not only limit and fix the second sealing part 22, but also obtain better sealing effect; the two ends of the first mounting groove are respectively communicated with the groove walls of the inner ring of the annular mounting groove, and the first sealing part 21 can be connected and sealed with the second sealing part 22 through the communication, so as to avoid the protrusion between the first sealing part 21 and the second sealing part 22. As an alternative embodiment, the two ends of the first sealing part 21 can be sealed and abutted with the groove walls of the two ends of the first mounting groove. The first sealing part 21 and the second sealing part 22 are integrally formed, which is simple in structure, convenient to form, and simple and convenient in installation and disassembly. As an alternative embodiment, the first sealing part 21 and the second sealing part 22 can be welded.

[0043] In the embodiment, the connecting port 113 is further provided with a stepped groove 16 arranged on the outer periphery of the mounting part 15, which is used for guiding and positioning the connection of the dust and dirt separator 3, ensuring the connection accuracy of the dust and dirt separator 3, and enhancing the connection speed.

[0044] Specifically, the air duct shell 11 includes a shell body 17, an air inlet shell 18 and an air outlet shell 19; one end of the shell body 17 is provided with the connecting port 113, the partition part 12 is connected in the shell body 17, and the inner cavity of the shell body 17 is divided into a first inner cavity and a second inner cavity; the air inlet shell 18 extends outward from the other end of the shell body 17 and is integrally formed with the shell body 17, and the air inlet 111 is arranged on the end of the air inlet shell 18 away from the shell body 17; the inner cavity of the air inlet shell 18 is communicated with the first inner cavity and forms an air inlet cavity 13 with the first inner cavity; the air outlet shell 19 extends outward from the side of the shell body 17 and is integrally formed with the shell body 17, and the air outlet 112 is arranged on the end of the air outlet shell 19 away from the shell body 17; the inner cavity of the air outlet shell 19 is communicated with the second inner cavity and forms an air outlet cavity 14 with the second inner cavity.

[0045] The shell body 17, the air inlet shell 18 and the air outlet shell 19 are integrally formed, which reduces the production cost, improves the production and assembly efficiency, and has a compact and simple structure, small air duct resistance and high reliability. The air inlet shell 18 is arranged to adapt to the position and size of the suction head or the suction port 51 of the air duct structure 1, and to compensate for the distance and the area difference of the flow cross section between structures. The air outlet shell 19 is arranged to adapt to the position of the fan unit 4 of the air duct structure 1, and to compensate for the distance and the area difference of the flow cross section between structures. The shell body 17 is arranged to adapt to the position and size of the dust separator 3, and to compensate for the distance and the area difference of the flow cross section between structures. The connecting port 113 and the air inlet shell 18 are arranged at both ends of the shell body 17, so that the airflow containing dust can enter and the resistance of the airflow containing dust can be reduced. Preferably, the air inlet direction of the air inlet shell 18 and the air inlet direction of the first inner cavity of the shell body 17 form an included angle, and the angle of the included angle is greater than 90°.

[0046] Specifically, the partition part 12 includes two partition plates arranged in parallel and spaced apart, and a groove plate connected to one end of the two partition plates close to the connecting port 113. The two partition plates and the groove plate enclose a first mounting groove. The outer peripheral wall of the shell body 17 at one end of the connecting port 113 is provided with a flange, and the flange and the shell body 17 enclose a second mounting groove. A reinforcing rib can be arranged between the partition plate and the shell body 17 to increase the strength of the partition plate. Alternatively, a flow guide plate can be arranged between the partition plate and the shell body 17. The flow guide plate is arranged in the first inner cavity and is used to guide the airflow to the dust inlet. The flow guide plate cooperates with the shell body 17 and the partition plate to partition a first flow passage 1131 matched with the dust inlet.

[0047] Further, the area of the flow cross section of the second flow passage 1132 is greater than the area of the flow cross section of the air outlet shell 19, and an arc-shaped transition surface 191 is arranged between the second flow passage 1132 and the air outlet shell 19. The arc-shaped transition surface 191 can achieve smooth transition and reduce air resistance, thereby improving efficiency.

[0048] In this embodiment, a cleaning device is also provided, which includes the above-mentioned air duct structure 1, dust separator 3 and fan unit 4. The dust separator 3 is connected to the connecting port 113. The first flow passage 1131 is adapted to communicate with the dust inlet of the dust separator 3. The second flow passage 1132 is adapted to communicate with the airflow outlet of the dust separator 3. The fan unit 4 is connected to the air outlet port 112. The air inlet port 111 can be a suction head of the cleaning device or connected to a suction head.

[0049] Compared with the prior art in which the suction head, the fan unit 4 and the dust separator 3 are connected by separate air duct structures 1, the cleaning device in the embodiment achieves the connection between the suction head, the dust separator 3 and the fan unit 4 by an integrated air duct structure 1, thereby reducing the number of parts, lowering the production cost, improving the production and assembly efficiency, achieving the purpose of reducing cost and increasing efficiency, and improving the market competitiveness of the product; and the structure is compact and simple, the air duct resistance is small, and the reliability is high.

[0050] The cleaning device provided in the embodiment further comprises a housing 5, the housing 5 is provided with a suction port 51, the air duct structure 1 is connected in the housing 5, and the air inlet 111 is connected at the suction port 51. The suction port 51 is usually arranged at the bottom of the housing 5, and the air duct structure 1 can suck dust through the air inlet 111 and the suction port 51 under the action of the fan unit 4 and the dust separator 3.

[0051] Further, the cleaning device is a mite removing instrument.

[0052] As a convertible embodiment, the cleaning device can also be a dust collector.

[0053] The dust removing step of the cleaning device comprises the following steps: under the action of the fan unit 4, a negative pressure is generated in the air duct cavity of the air duct structure 1, the dust-containing airflow enters the air inlet cavity 13 through the air inlet 111, then enters the dust separator 3 through the first flow-through port 1131 and the dust inlet, is separated, and the clean air enters the air outlet cavity 14 through the airflow outlet and the second flow-through port 1132, and is discharged through the air outlet 112 under the action of the fan unit 4.

[0054] In the embodiment, a connecting arm is protruded on the outer wall of the air inlet shell 18, a connecting hole is arranged on the connecting arm, the connecting hole is detachably connected with the housing 5 through a fastener, and the fastener can be a fastening structure such as a screw or a bolt. A limiting column is further protruded on the housing 5, and the limiting column is used for limiting and fixing the shell body 17. The air inlet shell 18 can further be provided with a mounting hole of the plasma generator.

[0055] Obviously, the above embodiment is only an example for clearly illustrating, and does not limit the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A duct structure (1), characterized in that, include: The air duct housing (11) is provided with an air duct cavity and an air inlet (111), an air outlet (112) and a connection port (113) communicating with the air duct cavity. The connection port (113) is suitable for connection with the dust and dirt separator (3). A partition (12) is connected inside the air duct cavity, dividing the air duct cavity into an air inlet cavity (13) and an air outlet cavity (14). The air inlet cavity (13) is connected to the dust inlet and the air inlet (111) of the dust separator (3), and the air outlet cavity (14) is connected to the air outlet and the air outlet (112) of the dust separator (3). The partition (12) extends to the connection port (113) and divides the connection port (113) into a first flow port (1131) and a second flow port (1132). The air inlet cavity (13) is connected to the dust inlet through the first flow port (1131), and the air outlet cavity (14) is connected to the air outlet through the second flow port (1132).

2. The air duct structure (1) according to claim 1, characterized in that, The partition (12) is integrally formed inside the air duct cavity.

3. The air duct structure (1) according to claim 1 or 2, characterized in that, The connection port (113) is provided with an installation part (15), which is adapted to be connected to the sealing element (2). The first flow port (1131) is adapted to be connected to the dust gas inlet through the sealing element (2), and the second flow port (1132) is adapted to be connected to the airflow outlet through the sealing element (2).

4. The air duct structure (1) according to claim 3, characterized in that, The mounting portion (15) includes a first mounting portion (151) and a second mounting portion (152). The first mounting portion (151) is disposed on the partition portion (12), and the second mounting portion (152) is disposed on the air duct housing (11). The sealing element (2) includes a first sealing part (21) and a second sealing part (22). The first sealing part (21) is connected to the first mounting part (151). The first sealing part (21) is a strip-shaped sealing part extending along the length direction of the partition part (12). The second sealing part (22) is connected to the second mounting part (152). The second sealing part (22) is an annular sealing part matching the shape of the connection port (113). The two ends of the strip-shaped sealing part are respectively connected to the inner ring of the annular sealing part.

5. The air duct structure (1) according to claim 4, characterized in that, The first mounting portion (151) is a first mounting groove provided on the end face of the partition portion (12), and the second mounting portion (152) is a second mounting groove provided at the end of the air duct housing (11). The second mounting groove is an annular mounting groove that matches the shape of the air duct housing (11). The two ends of the first mounting groove are respectively connected to the groove wall of the annular mounting groove located in the inner ring. The first sealing portion (21) and the second sealing portion (22) are integrally formed.

6. The air duct structure (1) according to claim 5, characterized in that, The connection port (113) is also provided with a stepped groove (16), which is located on the outer periphery of the mounting part (15). The stepped groove (16) is used to guide and position the connection of the dust separator (3).

7. The air duct structure (1) according to any one of claims 1-2 and 4-6, characterized in that, The air duct housing (11) includes: The shell body (17) has the connection port (113) at one end. The partition (12) is connected inside the shell body (17) and divides the inner cavity of the shell body (17) into a first inner cavity and a second inner cavity. An air inlet shell (18) extends outward from the other end of the shell body (17) and is integrally formed with the shell body (17). The air inlet (111) is located on the air inlet shell (18) at the end away from the shell body (17). The inner cavity of the air inlet shell (18) communicates with the first inner cavity and forms an air inlet cavity (13) with the first inner cavity. An air outlet shell (19) extends outward from the side of the shell body (17) and is integrally formed with the shell body (17). The air outlet (112) is located on the air outlet shell (19) at one end away from the shell body (17). The inner cavity of the air outlet shell (19) communicates with the second inner cavity and forms an air outlet cavity (14) with the second inner cavity.

8. A cleaning device, characterized in that, include: The air duct structure (1) is as described in any one of claims 1-7; The dust and dirt separator (3) is connected to the connection port (113); The fan unit (4) is connected to the air outlet (112).

9. The cleaning device according to claim 8, characterized in that, It also includes a housing (5), on which a suction port (51) is provided, the air duct structure (1) is connected inside the housing (5), and the air inlet (111) is connected to the suction port (51).

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